US2512938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evaporator and separator
Assignee: Individual
•
Filing: 1945-07-20
•
Granted: 1950-06-27
•
Expires: 1965-07-20
Abstract
No abstract record available.
Inventors
- 👤 Roy O Henszey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:20
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1213596A
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US1528104A
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US1622643A
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US1723034A
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US1760351A
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US1783813A
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US1884726A
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US1950285A
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US2040284A
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US2121999A
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US2103521A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |